baber/WOPTO huggingface dataset:
Patent CA-2280297-C (CA)
Inventor: GILLARD RAY W
IPC: E01C23/082
Filed: 1999-08-18
Granted: 2008-10-28
Abstract: A ground working device formed of a frame having a lower surface, and plural individually retractable teeth secured to the frame and extending away from the surface in a ground contacting array. Teeth for the ground working device are formed as part of a retractable tooth assembly. A retractable tooth assembly preferably comprises a tooth carrier on one end of which a tooth is slidably mounted, and on the other end of which is mounted a tooth position fixative, with a position adjustable rigid link connecting the tooth position fixative and the tooth. The retractable tooth assembly preferably extends through the frame from a first side to a second side, the retractable tooth assembly being secured to the frame on the first side and the tooth forming a working end on the second side.
Patent CA-2282606-C (CA)
Inventor: SLIFE DOUGLAS ALAN
IPC: F16L23/024
Filed: 1998-02-19
Granted: 2008-02-05
Abstract: A sealing gasket for insertion into a circumferentially continuous groove of a flange joint for joining axially aligned tube ends, the flange joint being of the type having axially opposed flanges (16, 18) at th e tube ends to form a groove (30) therebetween when the joint is assembled, the groove being formed by axially opposed seal faces (22, 24) and radial end faces (16a, 18a) of the flanges, the groove comprising a groove first portion (32) that is open to an interior flow passage of the tubes and a second portion (34) that extends radially outward from the groove first portion, the gasket having a gasket first portion that seals the groove first portion and a gasket second portion that extends from the gasket first portion and into the groove second portio n; the gasket second portion being axially compressed when the joint is assembled and engaging with the radial end faces to produce a radia l compression of the gasket; the gasket second portion having a volume that is less than volume of the groove second portion to form an expansion space (44) in the groove second portion when the joint is assembled.
Patent CA-2285032-C (CA)
Inventor: CULROSS CLAUDE C
IPC: B01J21/08
Filed: 1998-04-20
Granted: 2006-06-13
Abstract: A process for the preparation of a catalyst which is highly active for the synthesis of hydrocarbons from mixtures of hydrogen and carbon monoxide. A silica or silica-containing support is treated with a solution containing both an Iron Group metal, or metals, and nitrous acid, nitric acid, or a nitro-containing organo, or nitro-containing hydrocarbyl compound, or compounds, sufficient to hydroxylate the surface thereof and increase the number of hydroxyl groups on the surfac e of the support such that the metal component will be highly dispersed, this increasing the activity of the catalyst in a hydrocarbon synthesis reaction as contrasted with that of a catalyst of similar composition, similarly prepared except that the support component of the catalyst was not contacted and simultaneously treated with both the Iron Group metal and the acid.
Patent CA-2298288-C (CA)
Title: Improved atrial defibrillator, lead systems and method
Inventor: ADAMS JOHN M
IPC: A61N1/39
Filed: 1992-04-07
Granted: 2003-09-16
Abstract: An implantable atrial cardioverter is arranged to be powered by a depletable power source for delivering electrical energy to the atria of a human heart in need of cardiversion. The atrial cardioverter comprises: sensing means for sensing electrical activations of the heart, the sensing means being continuously operable. Means are provided, responsive to the sensing means, for determining the time intervals between said sensed electrical activations. The cardioverter also comprises atrial arrhythmia detector means for detecting the presence of an atrial arrhythmia of the heart, disable means for maintaining the atrial arrhythmia detector means normally disabled to avoid excessive consumption of the depeletable power source, and enable means for enabling said atrial arrhythmia detector means responsive to the determined time intervals. Delivery means are provided, responsive to the atrial arrhythmia detector means for delivering the electrical energy to the atria of the heart in response to the atrial arrhythmia detector means detecting atrial arrhythmia of the heart.
Patent CA-2299003-C (CA)
Title: Emergency lighting in elevator cars with phosphorescent materials
Inventor: BLOCH HANSPETER
IPC: F21K2/00
Filed: 2000-02-21
Granted: 2008-10-07
Abstract: The interior of an elevator car is equipped with phosphorescent components which serve as emergency lighting in the case of power failure, and for giving the alarm it contains relevant operating elements which have phosphorescent coatings or are made of materials with phosphorescent additives.
Patent CA-2301046-C (CA)
Inventor: BROWN JONATHAN MILES
IPC: C12N5/071
Filed: 1998-09-02
Granted: 2009-03-10
Abstract: This invention is concerned with determining the three-dimensional structure of biological macromolecules such as proteins. In particular, it is concerned with methods for rapidly determining protein structure by NMR, by providing methods for simplifying NMR  spectra using labeled proteins prepared from specifically isotopically labeled amino acids having at least two isotopes of 13C, 15N and 2H  in the backbone, and methods for making these labeled proteins, e.g., by cultivation of a microbial culture containing said labeled amino acids.
Patent CA-2302315-C (CA)
Inventor: BOYD LAWRENCE M
IPC: A61F2/28
Filed: 1998-08-27
Granted: 2005-10-25
Abstract: An implant composed substantially of cortical bone is provided for use in cervical Smith Robinson vertebral fusion procedures. The implant is derived from allograft or autograft cortical bone sources, is machined to form a symmetrically or asymmetrically shaped (e.g, a substantially "D"-shaped) implant having a canal running therethrough according to methods of this invention, and inserted into the space between adjacent cervical vertebrae to provide support and induce fusion of the adjacent vertebrae. Osteogenic, osteoinductive or osteoconductive materials may be packed into the canal of the implant to expedite vertebral fusion and to allow autologous bony ingrowth.
Patent CA-2302691-C (CA)
Inventor: LUNDBY STEIN A
IPC: H04J13/10
Filed: 1998-09-08
Granted: 2010-03-30
Abstract: A method and apparatus for providing orthogonal spot beams (14a, 14b), sectors (16a, 16b), and picocells (18). The transmissions can be made orthogonal by using orthogonal auxiliary pilots and different Walsh traffic channels in adjacent areas. In accordance with the IS-95 standard, the pilot signal is covered with the 64-chip Walsh sequence zero. The 64-chip all zeros Walsh sequence can be designated as P and the 64-chip all one sequence can be designated as M. In the present invention, additional pilot signals can be provided by concatenating 64-chip all zeros P and all ones M sequences. Thus, for two pilot signals, pilot Walsh sequences of PP and PM can be used. For four pilot signals, pilot Walsh sequences of PPPP, PMPM, PPMM, and PMMP can be used. The present invention can be extended such that any required number of pilot Walsh sequences can be generated by substituting each bit in an K-bit Walsh sequence with the 64-chip all zeros P or all ones M sequence depending on the value of that bit.
Patent CA-2304287-C (CA)
Title: Elastomeric propylene polymers
Inventor: DEKMEZIAN ARMENAG H
IPC: C08F4/642
Filed: 1998-11-12
Granted: 2008-01-15
Abstract: A thermoplastic elastomer is provided comprising a branched olefin polymer having crystalline sidechains and an amorphous backbone wherein at least 90 mole percent of the sidechains are isotactic or syndiotactic polypropylene and at least 80 mole percent of the backbone is atactic polypropylene. Additionally, a process is provided for producing a thermoplastic elastomer composition comprising: a) contacting, in solution, at a temperature from 90 .degree.C to 120 .degree.C propylene monomers with a catalyst composition comprising a chiral, stereorigid transition metal catalyst compound capable of producing isotactic or syndiotactic polypropylene; b) copolymerizing the product of a) with propylene and, optionally, one or more copolymerizable monomers, in a polymerization reactor using an achiral transition metal catalyst capable of producing atactic polypropylene; and c) recovering a branched olefin polymer .
Patent CA-2308113-C (CA)
Inventor: POULOSE AYROOKARAN J
IPC: C12N15/09
Filed: 1998-10-23
Granted: 2011-07-26
Abstract: L'invention concerne de nouvelles variantes de protéases obtenues à partir de séquences d'ADN de protéases naturelles ou de protéases non humaines recombinées. Les protéases variantes sont généralement obtenues par modification in vitro d'une séquence d'ADN précurseur codant pour la protéase naturelle ou recombinée en vue de produire la substitution de plusieurs résidus d'acides aminés dans la séquence d'acides aminés d'une protéase précurseur. L'invention concerne des variantes de protéase qui contiennent des substitutions d'acides aminés à une ou plusieurs positions de résidus, de sorte que la substitution modifie la charge à cette position pour la rendre plus négative ou moins positive par rapport à une protéase précurseur, et par conséquent la variante de protéase est plus efficace dans un système à faible concentration de détergent qu'une protéase précurseur.
Patent CA-2308933-C (CA)
Inventor: IIO SATOSHI
IPC: H01J61/30
Filed: 2000-05-18
Granted: 2008-07-22
Abstract: An translucent polycrystalline ceramic capable of transmitting a visible light and excellent in strength, hardness, abrasion resistance, light transmittance, transparency and high-temperature characteristics and usable as a material, for instance, for cutting tools, outer tubes for high pressure sodium lamps and high temperature furnace window plates. The translucent polycrystalline ceramic has at least one characteristic features that (1) a mean particle size of crystal particles formed inside the ceramic is not larger than 1.0 µm, (2) a mean aspect ratio thereof is from 1.0 to 1.5, (3) a density thereof is substantially a theoretical density, (4) a light transmittance through its thickness of 1 mm is at least 50%, (5) a mean facet length of crystal particles formed inside the ceramic is not longer than a maximum wave length of the light. One of the embodiments is a translucent polycrystalline Al2O3 ceramic containing 0.02 - 2.0 mol% of oxide of metal belonging to IIIA and/or IVA group (excluding Ti), having its density of at least 3.98 g/cm3, a mean crystal particle size of 0.3 - 1.0 µm, its bending strength of at least 1900 MPa and its Vickers hardness of at least 850 at 1000°C.
Patent CA-2311586-C (CA)
Inventor: JANG JOO-NYUNG
IPC: G03F1/68
Filed: 1998-12-08
Granted: 2003-04-08
Abstract: An amplitude mask, and an apparatus and method for manufacturing a long peri od grating filter using the same, are provided. When a long period grating is manufactured by selectively passing laser light to an optical fiber, the amplitude mask periodically passes laser light to the optical fiber. The amplitude mask includes two masks (300) having periodically alternating pass  areas (308) for passing the laser light and nonpass areas for preventing passing of the laser light, wherein the two masks (300) are continuously rotated in opposite directions. The period of the pass area (308) thus continuously changes. In this mask, two masks (300) each having a predetermined period are rotated in opposite directions, to thus provide an amplitude mask period depending on the angle of rotation (.alpha.). Thus, th e period of the amplitude mask can be continuously changed.
Patent CA-2312951-C (CA)
Title: Cover plate for gas turbine rotor
Inventor: BRUNET HUGUES R
IPC: F01D5/32
Filed: 1998-12-07
Granted: 2007-12-04
Abstract: A cover plate for a bladed rotor in a turbine section of a gas turbine engine which comprises an annular plate segment comprising a plurality of spaced-apart seats with each seat coincident with a rivet. The rivets are the rivets used for anchoring the root of the blade in the disc, and the seats and the covers have frusto-conical surfaces having an axis which is the axis of the rivet.
Patent CA-2317862-C (CA)
Inventor: TOMLINSON BRYAN
IPC: G01G11/00
Filed: 2000-09-07
Granted: 2006-11-21
Abstract: A conveyor system for accurate weighing of a material where all system components are integrated as a single unit and are mounted on either a first or a second frame portion. A trailer hitch and a pair of wheels mounted on the first frame portion provide a portability feature of the conveyor system. The conveyor system consists of the first portion of the frame adjustable to a true horizontal orientation and the second frame portion is inclined at a predetermined angle relative to the first frame portion. A continuous conveyor belt is disposed around the second frame portion and is supported by a series of support roller assemblies on the upper portion of the belt, and by a series of return rollers on the lower portion of the belt.  The upper and lower portions of the conveyor belt travel in opposite directions with respect to one another around the second frame portion during operation of the conveyor system. A hydraulic drive system is mounted on the first frame portion. A drive pulley, driven by a hydraulic motor, is located at a discharge end of the second frame portion and an idler pulley is located at an inlet end thereof. A weigh station consisting of a pair of weigh rollers and a pair of corresponding weigh scales is positioned on the second frame portion between the discharge and the inlet ends.
Patent CA-2319080-C (CA)
Title: Agents antibacteriens
Inventor: GRIFFIN JOHN H
IPC: A61K47/48
Filed: 1999-06-07
Granted: 2011-05-31
Abstract: La présente invention concerne des composés à liaisons multiples constituant des agents antibactériens. Ces composés à liaisons multiples comportent de 2 à 10 ligands reliés par covalence à au moins un lieur. Chacun de ces ligands à l'état monovalent, c'est-à-dire non lié, est capable de se lier à une enzyme intervenant dans la biosynthèse et le métabolisme de la paroi cellulaire. Cela fait qu'un précurseur utilisé pour la synthèse de la paroi cellulaire de la bactérie et/ou de la surface de la cellule de la bactérie interfère avec la synthèse et/ou le métabolisme de la paroi cellulaire. Plus particulièrement, les composés à liaisons multiples de l'invention comportent de 2 à 10 ligands reliés par covalence à au moins un lieur. Chacun de ces ligands comporte un domaine de ligand capable de se lier aux protéines de liaison de la pénicilline, une transpeptidase, un substrat de transpeptidase, une bêta-lactamase, une pénicillinase, une céphalosporinase, une transglycosylase ou un substrat de transglycosylase. On préfère sélectionner les ligands parmi les agents antibactériens de la classe des bêta-lactamines ou des glycopeptides.
Patent CA-2320964-C (CA)
Title: Anti-theft case, particularly for compact disks, videocassettes, musicassettes and the like
Inventor: NECCHI PIETRO
IPC: B65D85/57
Filed: 1999-01-15
Granted: 2007-04-17
Abstract: There is disclosed an anti-theft case (1, 101, 201) for products, particularly for compact disks, videocassettes, musicassettes and the like, adapted to occupy as little space as possible during product exposition and to prevent unwanted twisting forces against it. The case is thereby equipped with a locking and unlocking device (9, 217) completely inserted inside the case (1, 201) and cooperating with the case and a moving abutment member (7, 211) to lock the product into the case. The case is further equipped with anti-twisting means (11; 123, 123', 125, 125'; 209) to prevent unwanted extraction of the products by violent and abrupt torsion forces.
Patent CA-2321236-C (CA)
Inventor: CHISHOLM MICHAEL STEPHEN
IPC: C08F2/38
Filed: 1999-03-12
Granted: 2009-12-08
Abstract: A method of preparing a (meth)acrylate functionalised polymer comprising the steps of mixing together a monofunctional vinylic monomer with from 0.3-100 % w/w (based on monofunctional monomer) of a polyfunctional vinylic monomer and from 0.0001-50 % w/w of a chain transfer agent, reacting said mixture to form a polymer and terminating the polymerisation reaction before 99 % conversion.The resulting polymers are useful as components of surface coatings and inks, as moulding resins or in curable compounds, e.g. curable moulding resins or photoresists.
Patent CA-2325239-C (CA)
Title: Battery lead with charging and operating connection
Inventor: JACOBS JAMES K
IPC: H01R24/38
Filed: 2000-11-07
Granted: 2004-01-20
Abstract: An electrical lead for simultaneously connecting an external power source to an electrical load and an external battery is disclosed. The electrical lead has preferably a double connector comprising a socket part axially aligned with a plug part at a first end of the lead. The socket part connects with a plug from an external power source and the plug part connects with an electrical load, such as a portable computer. A separate plug, located at the second end of the electrical lead, is provided for connecting to an external battery. The socket part, connectable to the external load, is electrically coupled to the plug part for connection to the electrical load and also the plug for connection to the external battery. The lead comprises a first insulated conductor electrically coupling the socket part to the plug, and, a second insulated conductor electrically coupling the plug to the plug part. In this way, the socket part is electrically coupled in parallel with the plug part. Furthermore, the internal terminals of the socket part, the plug part and the plug are electrically coupled in parallel. Likewise, the external terminals of the socket part, the plug part and the plug are electrically coupled in parallel.
Patent CA-2327442-C (CA)
Inventor: LOVITT ESTEL L JR
IPC: B60B19/02
Filed: 2000-12-04
Granted: 2006-01-31
Abstract: A wheel adapter that adapts a conventional vehicle hub to a wheel having a large inward offset, thereby permitting the original wheel track of the vehicle to be changed to match the width of a railroad track so the tires of the vehicle will sit on the railroad track. The adapter locates the wheel to avoid contact with a brake caliper on the vehicle.
Patent CA-2336447-C (CA)
Inventor: HESSENIUS KURT A
IPC: C08F220/06
Filed: 1999-07-02
Granted: 2007-08-21
Abstract: L'invention concerne un procédé continu de polymérisation en masse et d'estérification, qui consiste à injecter en continu dans une zone de réaction au moins un monomère fonctionnel acide insaturé en éthylène et au moins un alkanol à chaîne linéaire ou ramifiée ayant plus de 11 atomes de carbone. Le procédé consiste également à maintenir dans la zone de réaction un débit suffisant pour établir un temps de séjour moyen de moins de 60 minutes et à maintenir dans la zone de réaction une température suffisante pour élaborer un produit polymère renfermant au moins une partie de l'alkanol comme ester du monomère fonctionnel acide insaturé en éthylène polymérisé. On utilise le produit polymère dans des procédés divers qui permettent d'élaborer des compositions à base d'eau, y compris des émulsions et des dispersions du type émulsions huileuses, dispersions de cire, dispersions de pigment, tensioactifs et revêtements renfermant le produit polymère. Un tensioactif polymère renferme au moins un monomère fonctionnel acide insaturé en éthylène, radicalement incorporé dans ledit tensioactif, et au moins un ester de ce monomère incorporé, qui comporte un groupe alkyle à chaîne linéaire ou ramifiée ayant plus de 11 atomes de carbone. La concentration molaire critique en micelles du tensioactif polymère est inférieure à 1,0 x 10<-2> moles/litre. L'invention concerne aussi des solutions aqueuses neutralisées à 2 % de certains tensioactifs polymères, qui ont une tension superficielle inférieure à 45 mN/m à 30 DEG  C et qui présentent une diminution de cette tension, au moins équivalente à 5 mN/m lorsque la température passe de 30 DEG  C à 50 DEG  C.
Patent CA-2336799-C (CA)
Title: Improved stable topical ascorbic acid compositions
Inventor: SIDDIQUI MUKHTAR
IPC: A61K8/00
Filed: 1999-06-25
Granted: 2008-07-29
Abstract: An ascorbic acid (Vitamin C) composition in a nonaqueous or substantially anhydrous silicone vehicle has superior stability. Particulate ascorbic acid is substantially insoluble in the disclosed polyorganosiloxane vehicles, and the vehicle substantially excludes environmental oxygen. The ascorbic acid particles have surprisingly been found to have a high degree of bioavailability and effectiveness, for example in topical applications to reduce wrinkles and increase collagen growth and elasticity.
Patent CA-2340828-C (CA)
Title: Card holder
Inventor: VAUDREUIL RENE
IPC: A45C11/18
Filed: 2001-03-20
Granted: 2005-05-17
Abstract: A card holder for securely linking together an identification card to a validation card so as to prevent fraudulent removal of the identification and validation cards once the latter have been inserted into the card holder. The card holder defines a generally flat and hollow casing having a casing front wall, an opposed casing rear wall, a casing top wall, an opposed casing bottom wall and a pair of casing side walls. The casing front wall has a window aperture extending therethrough. The casing bottom wall has a bottom wall slot extending therethrough. The first card is adapted to be secured within the casing so that it can be visualized through the window aperture. A carriage component defining a carriage slot is slidably mounted within the casing inner volume over the first card. The carriage slot is provided with protrusions adapted to cooperated with corresponding notches formed in a marginal upper segment of the second card for securing the second card to the carriage when the marginal section of the second card is slidably inserted into the carriage slot. The carriage and associated second card are adapted to slide between a storage configuration wherein the second card generally overlies the first card and a display configuration wherein the first and second cards are in an offset relationship relative to each other allowing simultaneous display of both the identification and validation cards.
Patent CA-2343628-C (CA)
Title: Improved rheologically-dynamic, liquid-applicable elastomeric compositions
Inventor: PICKETT MATTHEW T
IPC: C09D107/02
Filed: 2001-04-10
Granted: 2004-06-29
Abstract: Improved compositions of the present invention are made from a rubber latex component (A) and an oil Garner component (B) having hygroscopic and vulcanizing agents. Upon intermixing of the components A and B, an elastomeric composition is formed that can undergo a rheological transformation from a flowable liquid to a solidified elastomeric solid. An improved linear slope between fluidity and temperature is achieved by using naphthenic oil in the oil carrier component (B) with an organic rheology modifier, such as a modified castor oil and/or a polyamide. Further exemplary compositions comprise an inorganic rheology modifier such as an activated clay.
Patent CA-2346201-C (CA)
Title: Substance gm-95, process for producing the same and utilization thereof
Inventor: WIERZBA KONSTANTY
IPC: C12P17/18
Filed: 1999-10-20
Granted: 2007-06-05
Abstract: A compound which has the following formula (1), <IMG> a process for its production, a pharmaceutical composition comprising the compound as an active ingredient, a method of treating tumor which comprises administering the compound, use of the compound as a medicine, and a microorganism capable of producing the compound. The compound of the present invention is a novel compound which has antitumor action and is useful as a medicine.